Add spec for project routing CRUD REST API endpoints (elastic#139634)

Author: alexey-ivanov-es

rest-api-spec/src/main/resources/rest-api-spec/api/project_routing.create.json

@@ -0,0 +1,32 @@
+{
+  "project_routing.create": {
+    "documentation": {
+      "url": null,
+      "description": "Create or update named project routing expression"
+    },
+    "stability": "experimental",
+    "visibility": "public",
+    "headers": {
+      "accept": ["application/json"],
+      "content_type": ["application/json"]
+    },
+    "url": {
+      "paths": [
+        {
+          "path": "/_project_routing/{name}",
+          "methods": ["PUT"],
+          "parts": {
+            "name": {
+              "type": "string",
+              "description": "The name of the project routing expression"
+            }
+          }
+        }
+      ]
+    },
+    "body": {
+      "description": "Project routing expression to save",
+      "required": true
+    }
+  }
+}

rest-api-spec/src/main/resources/rest-api-spec/api/project_routing.create_many.json

@@ -0,0 +1,26 @@
+{
+  "project_routing.create_many": {
+    "documentation": {
+      "url": null,
+      "description": "Create or update named project routing expressions"
+    },
+    "stability": "experimental",
+    "visibility": "public",
+    "headers": {
+      "accept": ["application/json"],
+      "content_type": ["application/json"]
+    },
+    "url": {
+      "paths": [
+        {
+          "path": "/_project_routing/",
+          "methods": ["PUT"]
+        }
+      ]
+    },
+    "body": {
+      "description": "Project routing expressions to save",
+      "required": true
+    }
+  }
+}

rest-api-spec/src/main/resources/rest-api-spec/api/project_routing.delete.json

@@ -0,0 +1,28 @@
+{
+  "project_routing.delete": {
+    "documentation": {
+      "url": null,
+      "description": "Delete named project routing expression"
+    },
+    "stability": "experimental",
+    "visibility": "public",
+    "headers": {
+      "accept": ["application/json"],
+      "content_type": ["application/json"]
+    },
+    "url": {
+      "paths": [
+        {
+          "path": "/_project_routing/{name}",
+          "methods": ["DELETE"],
+          "parts": {
+            "name": {
+              "type": "string",
+              "description": "The name of the project routing expression"
+            }
+          }
+        }
+      ]
+    }
+  }
+}

rest-api-spec/src/main/resources/rest-api-spec/api/project_routing.get.json

@@ -0,0 +1,28 @@
+{
+  "project_routing.get": {
+    "documentation": {
+      "url": null,
+      "description": "Get named project routing expression"
+    },
+    "stability": "experimental",
+    "visibility": "public",
+    "headers": {
+      "accept": ["application/json"],
+      "content_type": ["application/json"]
+    },
+    "url": {
+      "paths": [
+        {
+          "path": "/_project_routing/{name}",
+          "methods": ["GET"],
+          "parts": {
+            "name": {
+              "type": "string",
+              "description": "The name of the project routing expression"
+            }
+          }
+        }
+      ]
+    }
+  }
+}

rest-api-spec/src/main/resources/rest-api-spec/api/project_routing.get_many.json

@@ -0,0 +1,22 @@
+{
+  "project_routing.get_many": {
+    "documentation": {
+      "url": null,
+      "description": "Get named project routing expressions"
+    },
+    "stability": "experimental",
+    "visibility": "public",
+    "headers": {
+      "accept": ["application/json"],
+      "content_type": ["application/json"]
+    },
+    "url": {
+      "paths": [
+        {
+          "path": "/_project_routing/",
+          "methods": ["GET"]
+        }
+      ]
+    }
+  }
+}